/Engine/Source/Developer/ToolWidgets/Public/Filters/GenericFilter.h
Can be overriden for custom FilterBar subclasses to save settings, currently not implemented in any generic Filter Bar
virtual void SaveSettings ( const [FString](API\Runtime\Core\Containers\FString) & IniFilename, const [FString](API\Runtime\Core\Containers\FString) & IniSection, const [FString](API\Runtime\Core\Containers\FString) & SettingsString ) const